Global Patent Index - EP 1237393 A2

EP 1237393 A2 2002-09-04 - Speaker and speaker system

Title (en)

Speaker and speaker system

Title (de)

Lautsprecher und Lautsprechersystem

Title (fr)

Haut-parleur et système de haut-parleur

Publication

EP 1237393 A2 (EN)

Application

EP 02001525 A

Priority

JP 2001055161 A

Abstract (en)

There is provided a speaker or a speaker system which has no chance of disabled ventilating air in a space enclosed with a voice coil bobbin to outside of the magnetic circuit through a throughhole C formed in a magnetic circuit to communicate with the space enclosed with a voice coil bobbin, even if mounting a speaker between inner surfaces of a casing, because of enabled ventilating air from a space enclosed with a voice coil bobbin to outside of a magnetic circuit through an air path 3c formed in the magnetic circuit to communicate with the throughhole C. <IMAGE>

IPC 1-7 (main, further and additional classification)

H04R 9/02

IPC 8 full level (invention and additional information)

H04R 9/02 (2006.01)

CPC (invention and additional information)

H04R 9/022 (2013.01); H04R 9/025 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

EP 1237393 A2 20020904; CN 1250044 C 20060405; CN 1373629 A 20021009; JP 2002262387 A 20020913; US 2002118855 A1 20020829; US 6754362 B2 20040622

INPADOC legal status


2009-02-18 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20080801

2002-09-04 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-09-04 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI